573.货舱灭火瓶位于( )The cargo fire bottle is located in ( )

129.自动中央油箱主传输情况下,当中央油箱 “LO LVL” 和两个传输泵 “LO PRESS”时,将发生( ) Automatic central tank main transmission case, when the central tank “LO LVL” and two transmission pump “LO PRESS”,what will happen()

128.中央油箱向内油箱传输的条件是( ) The center tank transfer to inner tank conditions is:

127.左右外油箱同时传输的目的是( ) Left, right outer tank transfer to inner tank at same time purpose is:

126.外油箱向内油箱传输是( ) what meaning of fuel transfer from outer tank to inner tank is?

125.Afterward booster pump of the APU working condition is:() 后APU增压泵工作的条件是( )

124.当右侧再循环抑制出现时,哪个发动机燃油回油活门被关闭When the right recycling suppression occurs, which the engine fuel return valve is closed( )

123.在下列哪种情况,燃油再循环被抑制 In which of the following conditions, fuel recirculation was inhibited( )

122.下列哪个条件,确定APU前、后泵之间的工作转换( )Which of the following conditions, between APU forward and afterward pump working conversion?().

121.燃油系统通气油箱有:how many vention tank are there in the fuel system?

120.内油箱中的紧急隔离活门的功用是: The inner tank emergency isolation valve function is